Home / 380,839.93-525,559.53-211,074.19

Finding the Fourth Proportional to 380,839.93, 525,559.53 and 211,074.19

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Solution

The fourth proportional to 380,839.93, 525,559.53 and 211,074.19 is: 291,282.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,839.93 : 525,559.53 = 211,074.19 : x
  2. Step 2: Convert to fraction form
    380,839.93/525,559.53 = 211,074.19/x
  3. Step 3: Cross multiply
    380,839.93x = 525,559.53 × 211,074.19
  4. Step 4: Simplify right side
    380,839.93x = 110,932,052,091.53
  5. Step 5: Solve for x
    x = 110,932,052,091.53/380,839.93
  6. Step 6: Final answer
    x = 291,282.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.